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Three charged particles with q1= -50 nanocoulomb, q2= +50 nanocoulomb, q3= +30 nanocoulomb are placed in a triangle. q1 and q2 are 10 cm apart horizontally and q3 is exactly between the two charges. q3 is 5cm below both q1 and q2. What is the net force on charge q3 due to the other two charges?
question a 51kg woman runs up a flight of stairs in 5.0s. her net upward displacement is 5.0m. approximately what
A rocket is fired at a speed of 75.0 m/s from ground level, at an angle of 66.3° above the horizontal. By how much does the rocket clear the top of the wall
A toy train is pushed forward and released at xi = 2.4 m with a speed of 1.4 m/s. What is the train's acceleration after its wheel begins to stick
A hand-driven grinding wheel is a uniform 62-kg disk with a 41-cm radius. It has a handle of negligible mass 64 cm from the rotation axis. Find the maximum angular velocity of the wheel
1.calculate the orbital radius of the hydrogen atom for the second principal quantum number.2.calculate the orbital
An airplane pulls a 25 kg banner on a cable as depicted in the figure below. What is the drag force exerted on the banner by the air
question1a robot arm that controls position of the video camera in an automated surveillance system is manipulated by a
Estimate the terminal speed of a wooden sphere (density 0.810 g/cm3) falling through air, if its radius is 8.00 cm and its drag coefficient is 0.500. (The density of air is 1.20 kg/m3.)
A metal sphere A has charge Q. Two other spheres, B and C, are identical to A except they have zero net charge. How much charge is on each sphere
A golfer hits a shot to a green that is elevated 3.20 m above the point where the ball is struck. find the speed of the ball just before it lands
a 30 n-force toward the west is applied to an object. the object moves 50 m east during the time the force is applied.
A uniform-density 8 kg disk of radius 0.20 m is mounted on a nearly frictionless axle. Initially it is not spinning. A string is wrapped tightly around the disk, and you pull on the string with the constant force of 45 N through a distance of 0.7 ..
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